docs: def enable_chimera(verbose=False, nogui=True):
      """
      Bypass script loading and initialize Chimera correctly, once
      the env has been properly patched.
  
      Parameters
      ----------
      verbose : bool, optional, default=False
          If True, let Chimera speak freely. It can be _very_ verbose.
      nogui : bool, optional, default=True
          Don't start the GUI.
      """
      if os.getenv('CHIMERA_ENABLED'):
          return
      import chimera
      _pre_gui_patches()
      if not nogui:
          chimera.registerPostGraphicsFunc(_post_gui_patches)
      try:
          import chimeraInit
          if verbose:
              chimera.replyobj.status('initializing pychimera')
      except ImportError as e:
          sys.exit(str(e) + "\nERROR: Chimera could not be loaded!")
      chimeraInit.init(['', '--script', NULL] + (sys.argv[1:] if not nogui else []),
                       debug=verbose, silent=not verbose, nostatus=not verbose,
                       nogui=nogui, eventloop=not nogui, exitonquit=not nogui,
                       title=chimera.title+' (PyChimera)')
      os.environ['CHIMERA_ENABLED'] = '1'